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[David Carter]

For ISO-level customization, skip the sketchy “debloated” downloads floating around Discord servers and build it yourself with DISM or DISM++ against a clean retail ISO — that’s the only way you actually know what’s in the final image. Mount the install.wim/install.esd, disable the SetupPlatform, SysMain, and DiagTrack services, and remove the appx packages you don’t need (Cortana, Store bloat, OneDrive) via Remove-AppxPackage on the offline image. But here’s what most guides get wrong: disabling SysMain isn’t a free latency win, it just moves your paging behavior — on an NVMe drive it’s largely a wash, and on lower-end setups you’ll actually lose frames in open-world titles. The real perfs are in your network stack, not in which telemetry service you killed.

On the service side, be surgical, not maximalist — stripping too much is how you break Windows Update, Defender, and driver installers, which causes far worse stutter than any background service could. Prioritize: set your power plan to Ultimate/High Performance, disable startup bloat via Task Manager, and if you’re

"Half-Life, Deus Ex, and System Shock 2: Peak PC gaming era."

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